package com.android.kotlincoroutinemvvmdemo.view
import android.content.Context
import android.graphics.Canvas
import android.graphics.DashPathEffect
import android.graphics.Paint
import android.graphics.Path
import android.util.AttributeSet
import com.android.kotlincoroutinemvvmdemo.R

/*
* PathEffectView01
* */
class PathEffectView01 @JvmOverloads constructor(
    context: Context,
    attributeSet: AttributeSet? = null
) : BaseView(context, attributeSet) {

    private val mStrokeWidth = context.resources.getDimension(R.dimen.dp_2)

    private var mPathEffect: DashPathEffect? = null
    
    private val mPaint0 by lazy {
        Paint().apply {
            isAntiAlias = true
            isDither = true
            strokeWidth = mStrokeWidth
            style = Paint.Style.STROKE
            color = context.resources.getColor(R.color.color_EB37F8)
        }
    }

    override fun onDraw(canvas: Canvas?) {
        super.onDraw(canvas)
        setBackgroundColor(context.resources.getColor(R.color.color_F3F3F3))
        canvas?.apply {
            val cx = mWidth.toFloat() / 2
            val cy = mHeight.toFloat() / 2
            translate(cx, cy)

            if (mPathEffect == null) {
                val circleLength = Math.PI * (cx * 2 / 3) * 2
                val onOffDistance = (circleLength / 16).toFloat()
                mPathEffect = DashPathEffect(
                    floatArrayOf(onOffDistance, onOffDistance),
                    0F
                )
            }
            mPaint0.pathEffect = mPathEffect

            val baseX = cx * 2 / 3
            val baseY = cy * 2 / 3
            drawArc(
                -baseX,
                -baseY,
                baseX,
                baseY,
                0F,
                360F,
                false,
                mPaint0
            )
        }
    }
}